From the article: The Defense Ministry official said the plot was uncovered by the military intelligence and the governments General Intelligence Service, which said the al-Qaida recruits planned to take U.S. and British diplomats hostage then demand withdrawal of U.S. and British troops.
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The key question is who is going to control the two critical ministries: interior and defense. In Iraq, as in much of the world, interior does not control the national parks. It controls the police. And under the current government it has been under Shiite control and infiltrated by extreme Shiite militias.
Iraqis must feel safe in their own cities and towns in order for the country to stabilize. At this time, the ministry of interior has been part of the problem. Krauthammer says that the United States has been trying to defuse this problem: